1. Bitstream is a binary sequence that converts the audio input into digital information

2. 7 This paper presents a new kind of perfect correlation signal, that is, odd-periodic perfect punctured binary sequence pair.

3. Bitstream is a binary sequence—or what we often hear as 1’s and 0’s—that we use when converting audio input into digital bits

4. 3 A new perfect correlation signal was proposed, which can be called as almost perfect punctured binary sequence pairs. Its properties and combinatorial admissibility conditions were studied.